Many kindergarten teachers have advanced educational degrees, yet they have lower average earnings than other individuals with similar educational levels. A potential explanation for the differences in earnings is that kindergarten teachers:

Kindergarten teachers have more pleasant working conditions and environment

Explanation:

Kindergarten teachers are not exposed to alot of job related hazards as the work environment is relatively pleasant and friendly. This consideration may be a reason why their pay is lower compared to other with similar degrees working in different sectors